vintf/framework_compatibility_matrix.xml

<compatibility-matrix version="9.0" type="framework">
    <hal format="aidl" optional="true">
        <name>aocx</name>
        <interface>
            <name>IAocx</name>
            <instance>default</instance>
        </interface>
    </hal>
    <hal format="aidl" optional="true">
        <name>com.google.flood</name>
        <interface>
            <name>IFloodService</name>
            <instance>default</instance>
        </interface>
    </hal>
    <hal format="aidl" optional="true">
        <name>vendor.google.aam</name>
        <version>1-2</version>
        <interface>
            <name>IAam</name>
            <instance>default</instance>
        </interface>
    </hal>
</compatibility-matrix>